First batch of deprecated removal
Merge branch 'master' of git://github.com/logstash/logstash into remove_deprecated
Merge branch 'master' of git://github.com/logstash/logstash into remove_deprecated
More changes

- Add support for multiple entries in a field for anonymize filter + test
- Removal of deprecated stuff in csv filter and tests
- Removal of deprecated tests for date filter
Merge pull request #481 from electrical/remove_deprecated

Remove deprecated